linux-kernel - drivers/net/wireless/quantenna/qtnfmac/event.c:785:6: warning: stack frame size (2192) exceeds limit (2048) in 'qtnf_event_work

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Date:   Mon, 26 Dec 2022 16:40:04 +0800
From:   kernel test robot <lkp@...el.com>
To:     Veerendranath Jakkam <quic_vjakkam@...cinc.com>
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
        linux-kernel@...r.kernel.org,
        Johannes Berg <johannes.berg@...el.com>
Subject: drivers/net/wireless/quantenna/qtnfmac/event.c:785:6: warning: stack
 frame size (2192) exceeds limit (2048) in 'qtnf_event_work_handler'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   1b929c02afd37871d5afb9d498426f83432e71c2
commit: efbabc11650040c64884ff3019b88c7bcc0ceb1d cfg80211: Indicate MLO connection info in connect and roam callbacks
date:   6 months ago
config: mips-randconfig-r014-20221226
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project f5700e7b69048de958172fb513b336564e7f8709)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install mips cross compiling tool for clang build
        # apt-get install binutils-mips64el-linux-gnuabi64
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=efbabc11650040c64884ff3019b88c7bcc0ceb1d
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout efbabc11650040c64884ff3019b88c7bcc0ceb1d
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash drivers/net/wireless/quantenna/qtnfmac/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> drivers/net/wireless/quantenna/qtnfmac/event.c:785:6: warning: stack frame size (2192) exceeds limit (2048) in 'qtnf_event_work_handler' [-Wframe-larger-than]
   void qtnf_event_work_handler(struct work_struct *work)
        ^
   1653/2192 (75.41%) spills, 539/2192 (24.59%) variables
   1 warning generated.


vim +/qtnf_event_work_handler +785 drivers/net/wireless/quantenna/qtnfmac/event.c

98f44cb0655cbe Igor Mitsyanko 2017-05-11  784  
98f44cb0655cbe Igor Mitsyanko 2017-05-11 @785  void qtnf_event_work_handler(struct work_struct *work)

:::::: The code at line 785 was first introduced by commit
:::::: 98f44cb0655cbef0850ba7ff4c8213fb1bf9b6a2 qtnfmac: introduce new FullMAC driver for Quantenna chipsets

:::::: TO: Igor Mitsyanko <igor.mitsyanko.os@...ntenna.com>
:::::: CC: Kalle Valo <kvalo@...eaurora.org>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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